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Check Valves

A Check Valve is a component that regulates, directs or controls the flow of fluid or gas by opening and closing to obstruct passageways. Qosina offers a wide variety of check valves in various configurations, cracking pressures, flow rates and materials.

Medical Check Valves

Qosina offers an extensive line of medical check valves available in a variety of styles, in stock and ready for immediate delivery. High-flow valves feature low flow resistance, low opening pressure, and a positive seal against backflow. In-line check valves feature low cracking pressures, which determine when the valve will start to open. If back pressure is a concern, choose from our variety of duckbill check valves. Luer activated check valves are equipped with a needle-free design that features a closed silicone plug that blocks flow until mechanically opened with a male luer connector. Dual check valves enable injection and aspiration from separate ports of a single connector. Qosina offers components from various check valve manufacturers in assorted flow rates, materials, cracking pressure and back pressure options. Single-use medical device check valve sample kits are also available for purchase and are ideal for testing.

In stock and available for immediate delivery, DEHP-free, acrylic in-line check valves feature latex-free silicone diaphragms that allow flow in one direction and will prevent retrograde flow (back pressure tested to various psi ratings). These in-line check valves have various cracking pressure ratings, and feature a versatile design making it a superior choice for inclusion. Qosina stocks a variety of check valves to complete your project including one-way duckbills, high flow and in-line, along with luer activated and dual check valves.